body {
    position: absolute;
    height: 99%;
    width: 99%;
    background-color: gray;
}

div {
    position: relative;
}

#block-element-palette {
    height: 90%;
    width: 10%;
    padding: 1% 1% 1% 1%;
    background-color: olive;
}

.block-element-palette-item {
    border: 1px solid black;
    background-color: orange;
    color: olive;
    width: 90%;
    height: 9%;
    text-align: center;
}

.ui-state-highlight {
    background-color: gray;
}